Drill collar locking device, well drilling and repairing pipe laying equipment and use method

Abstract

The present invention relates to the technical field of drilling equipment, and more specifically, to a drill collar locking device, a well drilling and repairing pipe laying device, and a method of using the same. The drill collar locking device comprises a first buffer, one end of which is arranged on a mounting seat, and the other end of which is connected to the end of a push rod of a linear motor; the first buffer is used to provide a buffer force to move the push rod away from the base of the linear motor. The first buffer can buffer the impact of the motor from the blocking rod.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling equipment, and in particular to a drill collar locking device, a well drilling and repairing pipe laying device and a use method thereof. Background Art

[0002] At present, in the oil well drilling and repair automation system, the second-level platform is a high-altitude equipment with no operator. The robot replaces the worker to carry out the pipe delivery and drainage operation, and the entire process of pulling and lowering the pipe is completely unmanned. Since the drill pipe must be placed vertically between the drilling table and the second-level platform, the function of the drill collar lock is to prevent the drill pipe from falling out and support the drill pipe against the finger beam.

[0003] However, the motion of the motor push rod of the existing drill collar lock controls the flipping of the blocking lever. Since the motor has a weak ability to withstand impact loads, when the acceleration is large, the structure has a large impact on the motor and there is a risk of damage. Summary of the invention

[0004] The objects of the present invention include, for example, providing a drill collar locking device, a well drilling and repairing pipe arrangement device and a method of use, which can buffer the impact of the motor from the blocking rod.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, an embodiment of the present invention provides a drill collar locking device, comprising a mounting seat, a stopper, a linear motor and a limit block, wherein the stopper can be movably arranged on the mounting seat, the linear motor pushes the stopper to be lifted or lowered, and when the stopper falls to the lowest point, it abuts against the limit block, and comprises a first buffer, one end of which is arranged on the mounting seat, and the other end of which is connected to the end of the push rod of the linear motor;

[0007] The first buffer member is used to provide a buffer force to move the push rod in a direction away from the base of the linear motor.

[0008] The two ends of the first buffer of the drill collar locking device are respectively arranged on the mounting seat and the push rod, and the first buffer is used to provide a buffer force to move the push rod away from the base of the linear motor. In this way, when the blocking rod falls, the first buffer provides a pulling force to the push rod to buffer the weight of the blocking rod on the push rod, and can help the motor resist the influence of external forces during operation, greatly improving the service life of the motor. Such a drill collar locking device has a simple structure, is easy to operate, and has significant economic benefits.

[0009] In an optional embodiment, one end of the first buffer member is movably disposed on the mounting seat along the moving direction of the push rod.

[0010] The movably connected end portion of the first buffer component can, on the one hand, facilitate the connection between the first buffer component and the mounting seat; on the other hand, because the push rod can rise to push the blocking rod to rise and fall to pull the blocking rod to fall, the movably connected end portion of the first buffer component can prevent the first buffer component from being excessively pulled during the rising process of the push rod, affecting the buffering effect; it can also enable the first buffer component to have a multi-stage buffering effect.

[0011] In an optional embodiment, the mounting seat has a slideway extending along the moving direction of the push rod;

[0012] One end of the first buffer is slidably disposed in the slideway.

[0013] When the end of the first buffer is located at the top of the slideway, the first buffer does not provide a buffering force. As the stopper rod falls, the push rod drives the end of the first buffer to slide to the bottom of the slideway. The stopper rod continues to fall, and the first buffer provides a buffering force to move the push rod away from the base, thereby reducing the impact of the stopper rod on the motor push rod.

[0014] In an optional embodiment, the slideway is a bar-shaped hole, and a fixed shaft is provided at one end of the first buffer member;

[0015] The fixed shaft is inserted into the strip hole, and the fixed shaft drives the first buffer member to slide along the extending direction of the strip hole.

[0016] The fixed shaft is provided with a strip hole, and the fixed shaft and the strip hole are slidably matched so that the first buffer can be flexibly matched. When the push rod falls and drives the first buffer to drop to the bottom of the strip hole, the first buffer starts to provide buffering force.

[0017] In an optional embodiment, a second buffer member is further included, one end of which is disposed on the mounting seat, and the other end of the second buffer member is used to abut against the blocking rod so that the blocking rod has a buffering force for lifting upward.

[0018] The second buffer can buffer the impact of the blocking rod on the mounting seat when the blocking rod falls, and the cooperation between the second buffer and the first buffer can significantly alleviate the impact of the blocking rod on the drill collar locking device as a whole, which is beneficial to ensure the stability and reliability of the overall structure.

[0019] In an optional embodiment, the second buffer member is arranged on the limiting block.

[0020] This reduces the impact force and noise of the stop rod on the limit block, improves the overall stability of the drill collar locking device and enhances the user experience.

[0021] In an optional embodiment, the limiting block has a groove, and the second buffer member is arranged in the groove.

[0022] This ensures that the second buffer member can be stably arranged on the mounting seat, simplifies the mounting structure, and facilitates modification based on existing products, with outstanding economic benefits.

[0023] In an optional embodiment, a third buffer member is further included, and the third buffer member is arranged at an end of the second buffer member close to the blocking rod;

[0024] The third buffer member is used for receiving the blocking rod so that the blocking rod has a buffering force away from the second buffer member.

[0025] The third buffer member and the second buffer member cooperate to buffer the impact force of the stop rod on the drill collar locking device as a whole.

[0026] In a second aspect, an embodiment of the present invention provides a well drilling and repair pipe arrangement device, comprising:

[0027] The drill collar locking device according to any one of the finger beams and the aforementioned embodiments, wherein the drill collar locking device is arranged at the beam seam of the finger beam.

[0028] In a third aspect, an embodiment of the present invention provides a method of use, the method of use is based on the drill collar locking device described in any one of the aforementioned embodiments, and the method of use comprises the following steps:

[0029] During the closing process of the drill collar locking device, the push rod is retracted and the blocking rod is lowered;

[0030] In the first stage of the movement, the first buffer moves downward following the change in the position of the push rod, during which the first buffer does not generate a buffer force;

[0031] When the blocking rod descends to a preset position, the first buffer component starts to generate a buffer force to resist the gravity of the blocking rod.

[0032] The beneficial effects of the embodiments of the present invention include, for example:

[0033] The drill collar locking device includes a first buffer member disposed between the mounting seat and the push rod, and the first buffer member is used to provide a buffer force to move the push rod away from the motor base. When the blocking rod falls, the first buffer member provides a pulling force to the push rod to buffer the impact of the blocking rod and resist the external force on the motor in operation, which greatly improves the service life of the motor. Such a drill collar locking device has a simple structure, convenient operation, and significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 It is a structural schematic diagram of a drill collar locking device according to an embodiment of the present invention;

[0036] Figure 2 It is a structural schematic diagram of a drill collar locking device from another perspective according to an embodiment of the present invention.

[0037] Icons: 10-drill collar locking device; 11-mounting seat; 12-stop rod; 13-straight motor; 13a-push rod; 13b-base; 14-limit block; 14a-groove; 15-rotating shaft; 16-connecting shaft; 100-first buffer; 101-fixed shaft; 200-second buffer; 300-third buffer. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0043] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0044] At present, in the oil well drilling and repair automation system, the second-level platform is a high-altitude equipment with no operator. The robot replaces the worker to carry out the pipe delivery and drainage operation, and the entire process of pulling and lowering the pipe is completely unmanned. Since the drill pipe must be placed vertically between the drilling table and the second-level platform, the function of the drill collar lock is to prevent the drill pipe from falling out and support the drill pipe against the finger beam.

[0045] Its structural form has the following disadvantages:

[0046] 1) As can be seen from the figure above, the straight-moving motor is connected to the lever through a rotating shaft and a connecting shaft, and the lever flipping is controlled by controlling the movement of the motor push rod. Since the motor has a weak ability to withstand impact loads, when the acceleration is large, the structure has a large impact on the motor and there is a risk of damage;

[0047] 2) There is an assembly gap in the mechanical structure design. When the lever drops to the limit block, the motor will continue to retract. Since the motor has a small remaining margin, it is easy to damage the motor;

[0048] 3) When the lever descends, it is limited mechanically, including the pulling force of the motor and the overall gravity of the lever. Since the lever is heavy and the lever arm is long, the impact speed is fast, and there is a lot of noise after hitting the limit block.

[0049] In order to overcome the above technical problems, a drill collar locking device, a well drilling and workover pipe laying equipment and a use method are provided in the following embodiments.

[0050] Please refer to Figure 1 The present embodiment provides a drill collar locking device 10 , including a mounting seat 11 , a blocking rod 12 , a straight-moving motor 13 and a limiting block 14 , and the drill collar locking device 10 includes a first buffer 100 .

[0051] One end of the first buffer member 100 is disposed on the mounting seat 11, and the other end of the first buffer member 100 is connected to the end of the push rod 13a of the linear motor 13;

[0052] The first buffer member 100 is used to provide a buffer force to move the push rod 13 a in a direction away from the base 13 b of the linear motor 13 .

[0053] The two ends of the first buffer 100 of the drill collar locking device 10 are respectively arranged on the mounting seat 11 and the push rod 13a, and the first buffer 100 is used to provide a buffer force to move the push rod 13a in a direction away from the base 13b of the straight motor 13. In this way, when the blocking rod 12 falls, the first buffer 100 provides a pulling force to the push rod 13a to buffer the weight of the blocking rod 12 applied to the push rod 13a, and can help the motor resist the influence of external forces during operation, greatly improving the service life of the motor. Such a drill collar locking device 10 has a simple structure, is easy to operate, and has significant economic benefits.

[0054] It should be noted that the drill collar locking device 10 of this embodiment also includes the connecting shaft 16 and the rotating shaft 15 in the prior art. The blocking rod 12 is rotatably arranged on the mounting seat 11 through the connecting shaft 16, one end of the rotating shaft 15 is fixed on the rotating shaft 15, and the other end of the rotating shaft 15 is hinged to the push rod 13a of the linear motor 13. In this way, the linear motor 13 pushes the blocking rod 12 to be raised or lowered, and when the blocking rod 12 falls to the lowest point, it abuts against the limit block 14.

[0055] Please continue to refer to Figure 1 to Figure 2 , to understand more structural details of the drill collar locking device 10.

[0056] In this embodiment of the present invention, one end of the first buffer member 100 is movably disposed on the mounting seat 11 along the moving direction of the push rod 13 a .

[0057] The movably connected end portion of the first buffer component 100, on the one hand, can facilitate the connection between the first buffer component 100 and the mounting base 11; on the other hand, because the push rod 13a can rise to push the blocking rod 12 to rise and fall to pull the blocking rod 12 to fall, the movably connected end portion of the first buffer component 100 can prevent the first buffer component 100 from being excessively pulled during the rising process of the push rod 13a, thereby affecting the buffering effect; it can also enable the first buffer component 100 to have a multi-stage buffering effect.

[0058] It can also be seen from the figure that the first buffer member 100 and the limiting block 14 are respectively located on two sides of the mounting seat 11 .

[0059] Furthermore, in this embodiment, the mounting seat 11 has a slideway extending along the moving direction of the push rod 13 a ; one end of the first buffer member 100 is slidably disposed in the slideway.

[0060] When the end of the first buffer 100 is located at the top of the slideway, the first buffer 100 does not provide a buffering force. As the blocking rod 12 falls, the push rod 13a drives the end of the first buffer 100 to slide to the bottom of the slideway. The blocking rod 12 continues to fall, and the first buffer 100 provides a buffering force to move the push rod 13a away from the base 13b, thereby reducing the impact of the blocking rod 12 on the motor push rod 13a.

[0061] Optionally, the slideway is a strip hole, and a fixed shaft 101 is provided at one end of the first buffer 100; the fixed shaft 101 passes through the strip hole, and the fixed shaft 101 drives the first buffer 100 to slide along the extending direction of the strip hole.

[0062] The fixed shaft 101 is provided with a strip hole, and the fixed shaft 101 and the strip hole are slidably matched so that the first buffer 100 can be flexibly matched. When the push rod 13a falls and drives the first buffer 100 to the bottom of the strip hole, the first buffer 100 starts to provide buffering force.

[0063] In other embodiments of the present invention, the slideway may be just a general track as long as the first buffer member 100 can move along the slideway, and is not limited to a strip-shaped hole structure.

[0064] In the embodiment, the slideway is a through waist-shaped hole, the fixed shaft 101 is a connecting pin, and the first buffer 100 is arranged in the waist-shaped hole through the connecting pin.

[0065] Further, the first buffer member 100 is an elastic member, and the first buffer member 100 is used to provide an elastic force to move the push rod 13a in a direction away from the base 13b of the linear motor 13. Optionally, the first buffer member 100 here is a tension spring.

[0066] It is understandable that in other embodiments of the present invention, the first buffer member 100 can also be a damping cylinder, a spring sheet, a buffer rubber or other structures, as long as the first buffer member 100 is used to provide a buffering force to move the push rod 13a in a direction away from the base 13b of the linear motor 13. Here, the first buffer member 100 being a tension spring is only an example and is not limited thereto.

[0067] Similarly, in other embodiments of the present invention, the end of the first buffer 100 may be fixedly connected to the mounting seat 11, as long as the first buffer 100 is used to provide a buffer force to move the push rod 13a in a direction away from the base 13b of the linear motor 13. Furthermore, the first buffer 100 itself has a multi-stage buffering capability, and it is not necessary to movably set the end of the first buffer 100 in the strip hole, for example, the first buffer 100 is a cylinder damper.

[0068] from Figure 2 It can also be seen that in this embodiment, the drill collar locking device 10 also includes a second buffer 200, one end of the second buffer 200 is arranged on the mounting seat 11, and the other end of the second buffer 200 is used to resist the blocking rod 12 so that the blocking rod 12 has an upward lifting buffer force.

[0069] The second buffer 200 can buffer the impact of the blocking rod 12 on the mounting seat 11 when it falls, and the second buffer 200 cooperates with the first buffer 100 to significantly alleviate the impact of the blocking rod 12 on the drill collar locking device 10 as a whole, which is beneficial to ensure the stability and reliability of the overall structure.

[0070] Optionally, the second buffer member 200 is an elastic member, and the second buffer member 200 provides an elastic force to lift the blocking rod 12 upward. Further, the first buffer member 100 is a compression spring.

[0071] It is understandable that in other embodiments of the present invention, the second buffer component 200 can also be a damping cylinder, a spring sheet, a rubber structure, etc., as long as the second buffer component 200 can provide a buffering force to lift the barrier rod 12 upward. Here, the second buffer component 200 is a compression spring, which is only an example and is not limited.

[0072] Furthermore, in this embodiment, the second buffer member 200 is disposed on the limit block 14. This reduces the impact force and noise of the stopper 12 on the limit block 14, improves the overall stability of the drill collar locking device 10, and enhances the user experience.

[0073] It can also be seen from the figure that in this embodiment of the present invention, the limit block 14 has a groove 14a, and the second buffer 200 is arranged in the groove 14a. This ensures that the second buffer 200 can be stably arranged on the mounting seat 11, simplifies the mounting structure, and is convenient for modification based on existing products, with outstanding economic benefits.

[0074] In this embodiment of the present invention, a third buffer 300 is further included, and the third buffer 300 is disposed at the end of the second buffer 200 close to the blocking rod 12; the third buffer 300 is used to receive the blocking rod 12 so that the blocking rod 12 has a buffering force away from the second buffer 200. The third buffer 300 and the second buffer 200 cooperate to buffer the impact force of the blocking rod 12 on the drill collar locking device 10 as a whole.

[0075] Optionally, the third buffer component 300 is a buffer pad.

[0076] Further, the groove 14a of the stopper 14 is a round hole extending to the bottom of the stopper 14. The second buffer 200 is disposed in the groove 14a, and the height of the second buffer 200 is lower than the depth of the groove 14a, that is, the top of the second buffer 200 is lower than the notch of the groove 14a. The third buffer 300 is disposed on the top of the second buffer 200, and the top of the third buffer 300 is higher than the notch of the groove 14a.

[0077] During use, when the drill collar is locked and closed, the motor push rod 13a is retracted and the stop rod 12 is lowered.

[0078] In the first stage of the movement, the first buffer member 100 (a tension spring in this embodiment) above the motor push rod 13a slides downward following the change in the position of the push rod 13a, and the tension spring does not deform during this process.

[0079] When the blocking rod 12 descends to the preset position, the fixed shaft 101 at the upper end of the tension spring reaches the lowermost end of the waist-shaped hole, at which time the tension spring begins to deform, and the generated tension reaction force begins to resist the gravity of the blocking rod 12 or other external forces.

[0080] The baffle rod 12 continues to descend, and when the lower end of the baffle rod 12 begins to contact the buffer pad, the compression spring under the buffer pad begins to intervene and generate a large rebound force, which significantly reduces the movement speed of the baffle rod 12, and the impact energy gradually decreases until the movement stops. At this time, the forces of the tension spring and the compression spring are balanced with the gravity of the baffle rod 12, and there is still sufficient safety margin between the position of the motor push rod 13a and the extreme position.

[0081] In a second aspect, an embodiment of the present invention provides a well drilling and repair pipe arrangement device, comprising a finger beam and a drill collar locking device 10 according to any one of the aforementioned embodiments, wherein the drill collar locking device 10 is arranged at a beam seam of the finger beam.

[0082] Such a drilling and repairing pipe arrangement device can ensure that the blocking rod 12 can be conveniently opened and closed at the beam seam opening of the finger beam, and ensure that the manipulator can smoothly take and place the drill collar. Such a drilling and repairing pipe arrangement device can avoid the impact of the blocking rod 12 on the straight-moving motor 13, and ensure the stable operation of the straight-moving motor 13.

[0083] In a third aspect, an embodiment of the present invention provides a method of use, which is based on the drill collar locking device 10 of any one of the aforementioned embodiments, and comprises the following steps:

[0084] During the closing process of the drill collar locking device 10, the push rod 13a is retracted and the blocking rod 12 is lowered;

[0085] In the first stage of the movement, the first buffer member 100 moves downward following the change in the position of the push rod 13 a , during which the first buffer member 100 does not generate any buffering force; during which the tension spring does not deform.

[0086] When the blocking rod 12 drops to the preset position, the first buffer member 100 starts to generate a buffer force to resist the gravity of the blocking rod 12. That is, the fixed shaft 101 at the upper end of the tension spring reaches the lowermost end of the waist-shaped hole, and the tension spring begins to deform, and the generated tension reaction force starts to resist the gravity of the blocking rod 12 or other external forces.

[0087] The baffle rod 12 continues to descend, and when the lower end of the baffle rod 12 begins to contact the buffer pad, the compression spring under the buffer pad begins to intervene and generate a large rebound force, which significantly reduces the movement speed of the baffle rod 12, and the impact energy gradually decreases until the movement stops. At this time, the forces of the tension spring and the compression spring are balanced with the gravity of the baffle rod 12, and there is still sufficient safety margin between the position of the motor push rod 13a and the extreme position.

[0088] The drill collar lock device 10 protects the drill collar lock mechanical structure by adopting a tension spring and a compression spring (or a damping buffer shock absorbing device). The tension spring and the compression spring provide dual protection for the motor at different positions; the tension spring adopts a pin shaft passing through a waist-shaped hole to ensure its intervention timing and does not affect the closing process of the drill collar lock.

[0089] In summary, the embodiment of the present invention provides a drill collar locking device 10, a well drilling and repairing pipe arrangement device and a use method, which have at least the following advantages:

[0090] 1) The dual protection (or damping device) of compression spring and extension spring greatly improves the service life of the linear motor;

[0091] 2) The movement speed of the blocking rod 12 and the impact energy generated by it are reduced in stages by successively intervening the compression spring and the extension spring;

[0092] 3) The fixed end of the mounting seat 11 adopts a waist-shaped hole design to fix the tension spring, which can provide good protection without affecting the operation of the blocking rod 12.

[0093] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A drill collar locking device, comprising a mounting seat, a stopper, a linear motor and a limit block, wherein the stopper (12) is movably arranged on the mounting seat, the linear motor pushes the stopper to be lifted or lowered, and when the stopper (12) falls to the lowest point, it abuts against the limit block, characterized in that: The invention comprises a first buffer member (100), one end of which is arranged on the mounting seat (11), and the other end of which is connected to the end of a push rod (13a) of the linear motor (13); the first buffer member (100) is used to provide a buffer force for moving the push rod (13a) in a direction away from a base (13b) of the linear motor (13); It also includes a second buffer member (200), one end of which is arranged on the mounting seat (11), and the other end of which is used to abut against the blocking rod (12) so that the blocking rod (12) has a buffer force for lifting upward; the second buffer member (200) is one of a damping cylinder, a spring sheet and a rubber structure; It also comprises a third buffer member (300), the third buffer member (300) being arranged at an end of the second buffer member (200) close to the blocking rod (12); the third buffer member (300) is used to receive the blocking rod (12) so that the blocking rod (12) has a buffering force away from the second buffer member (200); One end of the first buffer member (100) is movably arranged on the mounting seat (11) along the moving direction of the push rod (13a); The mounting seat (11) has a slideway extending along the moving direction of the push rod (13a); one end of the first buffer member (100) is slidably disposed in the slideway; The slideway is a strip-shaped hole, and a fixed shaft (101) is provided at one end of the first buffer (100); the fixed shaft (101) is inserted into the strip-shaped hole, and the fixed shaft (101) drives the first buffer (100) to slide along the extension direction of the strip-shaped hole.

2. A drill collar locking device according to claim 1, characterized in that: The second buffer member (200) is arranged on the limiting block (14).

3. A drill collar locking device according to claim 2, characterized in that: The limiting block (14) has a groove (14a), and the second buffer member (200) is arranged in the groove (14a).

4. A well drilling and repair pipe laying equipment, characterized in that: include: A finger beam and a drill collar locking device as described in any one of claims 1 to 3, wherein the drill collar locking device is arranged at the beam seam of the finger beam.

5. A method for using the drill collar locking device according to any one of claims 1 to 3, characterized in that: The method of use comprises the following steps: during the closing process of the drill collar locking device, the push rod (13a) is retracted and the blocking rod (12) is lowered; in the first stage of movement, the first buffer component (100) moves downward following the change in the position of the push rod (13a), and during this process, the first buffer component (100) does not generate a buffer force; when the blocking rod (12) is lowered to a preset position, the first buffer component (100) starts to generate a buffer force to resist the gravity of the blocking rod (12).

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